package com.gykj.redis.utils;

import java.nio.charset.Charset;

import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.SerializationException;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.serializer.SerializerFeature;

public class FastJson2JsonRedisSerializer<T> implements RedisSerializer<T> {
	
	public static final Charset DEFAULT_CHARSET = Charset.forName("UTF-8");

    private Class<T> clazz;

    public FastJson2JsonRedisSerializer(Class<T> clazz) {
        super();
        this.clazz = clazz;
    }

	@Override
	public byte[] serialize(T t) throws SerializationException {
	     if (t == null) {
	            return new byte[0];
	        }
	        return JSON.toJSONString(t, SerializerFeature.WriteClassName).getBytes(DEFAULT_CHARSET);
	}

	@Override
	public T deserialize(byte[] bytes) throws SerializationException {
	     if (bytes == null || bytes.length <= 0) {
	            return null;
	        }
	        String str = new String(bytes, DEFAULT_CHARSET);

	        return (T) JSON.parseObject(str, clazz);
	    }
}
